common: Add function to escape special

usr/local/share/bastille/common.sh

@@ -93,6 +93,19 @@ warn() {
     echo -e "${COLOR_YELLOW}$*${COLOR_RESET}"
 }
 
+escape_special_characters() {
+
+    # Escape special charcters for jail.conf files
+    # Only "." for now
+
+    local _string="${1}"
+
+    _escaped_string="$(echo ${_string} | sed 's#\.#\\\.#g')"
+
+    echo "${_escaped_string}"
+
+}
+
 # Parallel mode, don't exceed process limit
 bastille_running_jobs() {
 
@@ -544,4 +557,4 @@ checkyesno() {
     esac
 }
 
-set_bastille_mountpoints
+set_bastille_mountpoints